Answered
sym to double data type:
Your coeffiecients are symbolic. You should use syms x Y_poly = matlabFunction(a4*x.^4 + a3*x.^3 + a2*x.^2 + a1*x + a0);

2 months ago | 0

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Answered
Cannot compile app with Segment Anything Model SAM due to license?
Limitations This function does not support parfor loops, as its performance is already optimized. (since R2023a) Thus, it ha...

2 months ago | 0

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Answered
using command readcell to read specific structure
A = readcell('https://www.mathworks.com/matlabcentral/answers/uploaded_files/1752014/19510131163900.txt') B = readcell('https:/...

2 months ago | 0

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Answered
Vertcat tables with structure variables with different fieldnames
Use Var{1,3} = item(j,3); so that the third variable is a cell containing structures, instead of trying to concatenate str...

2 months ago | 1

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Answered
trying to follow the convert-to-spiking example. load("DigitsDataTrain") does not work. I can't find a DOWNLOAD for this .mat file either. John
That example needs R2023b or later.

2 months ago | 0

Answered
Obtain information after text pattern
S = fileread('CrPS4.mat'); parts = regexp(S, '(?<=damping-constant\s+=\s+)\S+', 'match'); parts_numeric = str2double(parts) ...

2 months ago | 0

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Answered
Writing data Dynamically in to .mat file using c++ - Append data to existing mat file
Your only hope is if MATLAB happens to export the matfile API as a library. In that case, provided you are using a -v7.3 .mat fi...

2 months ago | 0

Answered
How to use a 4d variable achieved from a function as a property in matlab app designer?
slice() is not able to slice 4D data. You are taking sum(app.N1,4) to reduce the data to 3D, but you are still attempting to li...

2 months ago | 0

Answered
Error : Failure in initial user-supplied nonlinear constraint function evaluation.
assigned_node = find(A(sb, :, v), 1); covering_uav = find(zeta_m_n(v, :), 1); ...

2 months ago | 0

Answered
Can't connect branch with block in simulink
The Current Measurement block https://www.mathworks.com/help/sps/powersys/ref/currentmeasurement.html is from Simulink Electrica...

2 months ago | 0

Answered
Matlab Runtime (mcr) new features
Each version of MATLAB Runtime adjusts to match the changes in MATLAB itself. So the list of changes in MATLAB Runtime is nearly...

2 months ago | 0

Answered
Facing license Issues while running a function from Communication Toolbox.
Signal_Blocks is the DSP System Toolbox You can use the command ver to find out which toolboxes you have installed. Finding ou...

2 months ago | 0

Answered
Error in boxchart (invalid parameter/value pair arguments)
anovan returns a vector of p values, not an anova object. Your syntax would have been okay if you had called anova

2 months ago | 0

Answered
Is it possible to have a string constant (output datatype: string) generated in UTF-8?
No, you cannot do this. Strings are exported as plain C / C++ character vectors, and plain C / C++ character vectors are 8 bit c...

2 months ago | 1

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Answered
genetic algorithm code for solving traveling salesman problem
Several people have posted the code in MATLAB Answers in the past. Search for it.

2 months ago | 0

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Answered
variables not being saved?
lumine(q) That call executes lumine with parameter q. Then it assigns the first output to a variable named ans and displays the...

2 months ago | 0

Answered
Error with find Function in MATLAB: "Incorrect number or types of inputs or outputs"
find() is not a supported operation on optimization variables. https://www.mathworks.com/help/optim/ug/supported-operations-on-...

2 months ago | 0

Answered
convert mat file to excel
You cannot generally convert .mat file to excel. You can potentially convert to excel under the special case that the .mat file...

2 months ago | 0

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Answered
Lorenz Attractor Animation with Frame-by-Frame Plotting
% Parameters sigma = 10; rho = 28; beta = 8/3; % Time span tspan = [0 50]; % Adjusted for smooth animation % Initial ...

2 months ago | 0

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Answered
Setting up communication via USB device with instrument
USB devices respond to hardware queries by listing a series of "endpoints". Each "endpoint" corresponds to a different behaviour...

2 months ago | 0

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Custom datastore - why can't I just have a datastore with doubles?
Use arrayDatastore (since R2020b)

2 months ago | 1

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How to find the roots of a non-polynomial equation in terms of symbolic variables ?
The Symbolic toolbox is not able to solve such equations. syms a A B K L real D = [cosh(K*L)-cos(K*L), sinh(K*L)-sin(K*L); sin...

2 months ago | 0

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Always Error is seen
Most likely, you are using surf() or contour() and the complaint is that Z is not at least a 2 x 2 matrix. The most common caus...

2 months ago | 0

Answered
Why is matlab creating multiple figures
You are calling figure() within your while loop, so each time you create a new figure. You should probably be calling figure() ...

2 months ago | 0

Answered
how to open .mhd file
See read_mhd() from https://www.mathworks.com/matlabcentral/fileexchange/47457-simple-viewer-3d or read_mhd() from https://www...

2 months ago | 0

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Answered
Size of the left side different from the right side
for i=1:108 if isempty(SPAnsVector(1,i))==0 PersonalSPQ(1,j)=i; PersonalSPAns(1,j)=SPAnsVector(1,i); because...

2 months ago | 0

Answered
find best fit ellipse to a set of data points
https://www.mathworks.com/matlabcentral/answers/98522-how-do-i-fit-an-ellipse-to-my-data-in-matlab https://www.mathworks.com/m...

2 months ago | 2

Answered
append (not strcat) to combine strings with whitespace (\n)
app.DebugField.Value = append(app.DebugField.Value, "rew LB" + newline);

2 months ago | 0

Answered
How to change xlim to specific range only?
how to change xlim to specific to 0 :3:9 ylim to 30:30:300 That is not possible. xlim() expects to be passed a limit method (s...

2 months ago | 0

Answered
how can I compute MI (mutual information) for two time series?
https://www.mathworks.com/matlabcentral/fileexchange/13289-fast-mutual-information-of-two-images-or-signals https://www.mathwo...

2 months ago | 0

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